/*
 * ProGuard -- shrinking, optimization, obfuscation, and preverification of Java bytecode.
 *
 * Copyright (c) 2002-2018 GuardSquare NV
 *
 * This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public
 * License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later
 * version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with this program; if not, write to the Free
 * Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */
package a.gui.proguard.gui.splash;

import java.awt.*;

/**
 * This VariableFont varies in size with respect to its Timing.
 *
 * @author Eric Lafortune
 */
public class VariableSizeFont implements VariableFont {
    private final Font font;
    private final VariableDouble size;

    private float cachedSize = -1.0f;
    private Font cachedFont;

    /**
     * Creates a new VariableSizeFont
     * 
     * @param font the base font.
     * @param size the variable size of the font.
     */
    public VariableSizeFont(Font font, VariableDouble size) {
        this.font = font;
        this.size = size;
    }

    // Implementation for VariableFont.

    public Font getFont(long time) {
        float s = (float)size.getDouble(time);

        if (s != cachedSize) {
            cachedSize = s;
            cachedFont = font.deriveFont((float)s);
        }

        return cachedFont;
    }
}
